This report explores the issue of prolonged static or constrained standing at work (as opposed to work that involves walking around). The main focus of this report is on MSDs associated with prolonged constrained standing. It examines the extent of prolonged standing at work, the health effects, guidance on ‘safe limits’ for continuous standing, and prevention practice to avoid prolonged constrained standing, reduce the risks when it cannot be avoided and promote a more dynamic workstyle. It also includes conclusions and pointers for policy-makers. The report aims to take into account the needs of micro and small enterprises (MSEs), and looks at various work sectors and gender and age issues.